Its up to you, which field you are interested in, just go for it. Both the fields have a very good opportunities in software industries, product based companies etc.  It is always evident that the course of specialization in CSE is a much better course compared to that of IT because CSE in general is a broader field compared to that of IT. In the CSE with specialization course, you will get a much broader field knowledge. The programming skills as well as the hardware and software skills in the curriculum of CSE is better compared to that of IT. Although, if you see the industry, then you will find that the student who have done CSE or IT work in the same cubicles in same responsible positions. So in most cases, you will not find much of difference if you are interested in programming, coding sector but if you want to have a large spectra of options available ahead, then going for the course of CSE or CSE with specialization will be a far better choice.

For more information regarding BTech CSE consider the link provided below:

https://www.careers360.com/courses/b-tech-in-computer-science-and-engineering

For more information regarding BTech IT consider the link below:

https://www.careers360.com/courses/b-tech-in-information-technology

I hope this helps. Wish you a great day!